Smoke alarm



FIG. 1 is a front elevation view of the smoke alarm showing my newinvention;

FIG. 2 is a front perspective view of the invention shown in FIG. 1;

FIG. 3 is a top perspective view of the invention shown in FIG. 1; and,

FIG. 4 is a top plan view of the invention shown in FIG. 1.

CLAIM The ornamental design for a smoke alarm, as shown and described.